BUG: memory leak
unreferenced object 0xffff888127e44820 (size 32):
  comm "syz-executor.2", pid 8162, jiffies 4294956342 (age 10.160s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 01 00 00 00 02 00 00 00  ................
  backtrace:
    [<000000008733d49b>] erase_aeb+0x25/0x110 drivers/mtd/ubi/wl.c:1700
    [<000000009afcf379>] ubi_wl_init+0x191/0x5c0 drivers/mtd/ubi/wl.c:1767
    [<000000003835a660>] ubi_attach+0x63b/0x1879 drivers/mtd/ubi/attach.c:1605
    [<000000007b2b7395>] ubi_attach_mtd_dev+0x65c/0xd30 drivers/mtd/ubi/build.c:970
    [<00000000a45e33ea>] ctrl_cdev_ioctl+0x144/0x1b0 drivers/mtd/ubi/cdev.c:1043
    [<00000000b30bd340>] vfs_ioctl fs/ioctl.c:48 [inline]
    [<00000000b30bd340>] ksys_ioctl+0xa6/0xd0 fs/ioctl.c:753
    [<000000000be5d32d>] __do_sys_ioctl fs/ioctl.c:762 [inline]
    [<000000000be5d32d>] __se_sys_ioctl fs/ioctl.c:760 [inline]
    [<000000000be5d32d>] __x64_sys_ioctl+0x1a/0x20 fs/ioctl.c:760
    [<00000000f3df7940>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:359
    [<00000000e8574821>] entry_SYSCALL_64_after_hwframe+0x44/0xa9